Japan has signed a deal with the United States to purchase up to 400 Tomahawk cruise missiles as part of its ongoing military buildup in response to increased regional threats

Japan signed a deal with the United States on Thursday to purchase up to 400 Tomahawk cruise missiles as part of its ongoing military buildup in response to increased regional threats.

Prime Minister Fumio Kishida’s government has pledged to double its annual defense spending to around 10 trillion yen ($68 billion) by 2027, which would make Japan the world’s third-biggest military spender after the United States and China.

Defense Minister Minoru Kihara announced in December a decision to accelerate deployment of some Tomahawks and Japanese-made Type 12 surface-to-ship missiles beginning in fiscal year 2025, a year before the original plan. The government says Japan is facing its “severest” security environment since World War II because of threats from China and North Korea, causing it to increase military cooperation with the U.S., Australia, Britain and other friendly nations.